Samsung has started android 10 roll out for both beta and non beta users for S9.It is releasing  in batches , so it should hit your device soon. Read this article.https://www.sammobile.com/news/stable-galaxy-s9-android-10-update-rolling-out-to-beta-u...

Samsung is playing  hide and seek. It has started releasing android  10 in batches.So it should hit your S9 soon Remember  I shared an article day before  yesterday saying Germany will  get update  in March but germany is already getting the update. ...

So, according  to today's notice that samsung has put here. The update has been pushed to Feb. This was clear when they pushed a security  update instead of full android update in jan.This also is in sync with the article I shared yesterday.

Please read complete  article.https://www.phonearena.com/news/samsung-galaxy-s9-s9-plus-android-10-update-march-schedule_id121774